Check the listing for details. White Rubber Stopper Bungs Laboratory Solid Hole Stopper Tapered Flask 15 Sizes. Condition: New. Listed at 3.03 USD. Product Description Specifications 1.Material: Rubber 2.Color: white 3.Size: 15 sizes(Shown as picture) 000#:Top Dia: 13mm,Bottom Dia:8mm ,Height:17mm 00#:Top Dia: 15mm,Bottom Dia:11mm ,Height:21mm 0#:Top Dia: 17mm,Bottom Dia:13mm ,Height:24mm 1#:Top Dia: 19mm,Bottom Dia:14mm ,Height:26mm 2#:Top Dia: 20mm,Bottom Dia:15mm ,Height:26mm 3#:Top Dia: 23mm,Bottom Dia:17mm ,Height:26mm 4#:Top Dia: 26mm,Bottom Dia:19mm ,Height:28mm 5#:Top Dia: 29mm,Bottom Dia:22mm ,Height:28mm 6#:Top Dia: 33mm,Bottom Dia:25mm ,Height:28mm 7#:Top Dia: 37mm,Bottom Dia:28mm ,Height:30mm 8#:Top Dia: 42mm,Bottom Dia:32mm ,Height:30mm 9#:Top Dia: 45mm,Bottom Dia:37mm ,Height:30mm 10#:Top Dia: 50mm,Bottom Dia:41mm ,Height:32mm 11#:Top Dia: 56mm,Bottom Dia:46mm ,Height:34mm 12#:Top Dia: 62mm,Bottom Dia:51mm ,Height:38mm Conversions: 1 mm= 0.039inch, 1 inch=25.4 mm 4.Can be used for test tube, flask stopper or other bottles If you need other sizes, please contact our customer service Notice 1、Please allow 1-3cm error due to manual measurement.Pls make sure you do not mind before you bid. 2、The color may have different as the difference display,pls understand. Package Including: Product type based on your selection. Payment: We accept Paypal only, It is fast, Easy and Safe. Payment must be completed within 7 days. PLEASE NOTE: S&H DOES NOT INCLUDE DUTIES, LOCATL TAXES OR ANY OTHER IMPORTATION FEES. Please list your special requests (color, packages, etc.) in the PAYPAL NOTES SECTION when you make payment. Shipping: We Ship to Worldwide. Orders processed within 24—48 hours of payment verification. it will take 15—25 days for delivery. but Customs will random inspection some parcel, so that's why some parcel need more than four weeks to arrive. Shipping time is only estimated and not guaranteed. We only ship to confirmed PAYPAL addresses. Your PAYPAL address MUST MATCH your Shipping address. Package to USA will Shipping by E—Package with Tracking Number(7—15 Days to Delivered). To other Countries will shipping by Post Air Mail without tracking number(ONLY when the order is over 20USD will supply Tracking Number Shipping Way!)(15—35 Days to Delivered) Items are shipped via China Post Air Mail. Guarantee: Good Good quality. Buy with confidence! If you are not satisfied when you receive your item, please return it within 7 days for a replacement or money back. Please contact me before you return it. Not accept returning of electronic components. Full refund after we receive our original item, Note: Return shipping is to be paid by the Buyer. We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.